* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
    background: #f0f2f5;
}

.login-box {
    background: white;
    width: 400px;
    margin: 150px auto;
    padding: 40px;
    border-radius: 8px;
    box-shadow: 0 2px 12px rgba(0, 0, 0, 0.1);
}

h1 {
    text-align: center;
    color: #2d3748;
    margin-bottom: 30px;
    font-size: 24px;
}

.form-group {
    margin-bottom: 25px;
}

label {
    display: block;
    margin-bottom: 8px;
    color: #4a5568;
    font-weight: 500;
}

input[type="password"] {
    width: 100%;
    padding: 12px 15px;
    border: 1px solid #e2e8f0;
    border-radius: 4px;
    font-size: 16px;
    transition: border 0.3s;
}

input[type="password"]:focus {
    outline: none;
    border-color: #4299e1;
    box-shadow: 0 0 0 3px rgba(66, 153, 225, 0.1);
}

button {
    width: 100%;
    padding: 12px;
    background: #4299e1;
    color: white;
    border: none;
    border-radius: 4px;
    cursor: pointer;
    font-size: 16px;
    transition: background 0.3s;
}

button:hover {
    background: #3182ce;
}

.error {
    color: #dc2626;
    text-align: center;
    margin-bottom: 15px;
    padding: 10px;
    background: #fee2e2;
    border-radius: 4px;
}